Milking-machine.



J. G. GORDON.

MILKING MACHINE.

APPLIOATION FILED SBP'II. 26, 1913.

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J. c. GORDON. MILKING MACHINE. APPLICATION TILED SEPT. 26, 1913.

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J. G. GORDON.

MILKING MACHINE.

APPLICATION FILED snmaze, 1913.

1,106,202, Patented Aug. 4, 1914.

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um'rnn STATES PATENT OFFICE.

AMnsc. GORDON, F CALGARY, ALBERTA, CANADA.

' MIIJKING-MACHINE."

prov anents in Milking-Machines, of which the following is aspecification.

This inventionrelates to improvements in milking machines and hasparticular application to fluid operated milking machines.

7 In carrying out the present invention, it is my purpose to provide afluid operated milking machine whereby the teats will be ma nipulatedsubstantially as in manual milking and wherein the devices for producingthe required manipulating actions will be so arranged and correlated asto perform the milking operation evenly and uniformly and withoutderangement of the parts.

It is also my purpose to provide a fluid operated milking machine whichwill embrace the desired features of simplicity, efliciency anddurability, one which may be manufactured and marketed at a minimumexpense and which may be readily and conveniently applied and removed.

With the above and other objects in view, the invention consists in theconstruction, combination and arrangement of parts hereinafter set forthin and falling within the scope of the claims.

In the-accompanying drawings: Figure 1 is a view in elevation showing myinvention in applied position; Fig. 2 is an enlarged vertical sectionalview through the teat press. Fig. 3 is a similar view taken at rightangles to Fig. 2. Fig. 4 is a horizontal sectional view through thepress. Fig. 5 is a perspective view of the plunger of the press. Fig. 6is a vertical sectional view through the pump. Fig. 7 is a view in sideelevation of the teat press.

Referring now to the accompanying drawings in detail, A designates ateat press comprising an outer casing or shell 1 preferably ofrectangular contour in cross section and constructed of any suitablematerial. Passed through the side walls of the casing 1 adjacent to oneend and the top edge thereof is a pivot rod 2 carrying a block 3depending into the casing and cut out to form a vertical well 4 designedto receive the teat and of a configuration corresponding to the contourthereof. Extending transversely through the block?) adjacent to thelower end thereof is a rod 5 having the oppositeends thereofSpecification of Letters Patent.

Application filed September 26, 1918. Serial No. 792,018.

- Patented Aug. 4, 1914.

extending through arcuate shaped slots 6 formed in the opposite sides ofthe casing 1. Swi'veled to the opposite side walls of the shell orcasing 1 and suitably spaced apart from the arcuate shaped slots 6 areheads 7, 7 each formed with a bore 8 through which is passed anadjusting rod 9 having one end formed to provide an eye 10 andencircling the adjacent end of the rod 5 and the opposite end screwthreaded to receive a take-up nut 11. Threaded onto the opposite ends ofthe rod 5 to maintain the connections between the adjusting rods 9, 9are nuts 12.

By means of this construction, it will be seen that when the take-upnuts 11 are rotated in one direction upon the adjusting rods 9, motionwill be transmitted to the rod 5 to swing the block 3 about the pivotrod 2 in one direction, while when the rotation of the takeup nuts isreserved the rods may be swung in the opposite direction.

One side of the well 4 opens onto one side edge of the block 3 andextendin outwardly from the adjacent end wall offiie casing l arehorizontal cylinders 13, 14 disposed one above the other and within eachcylinder is mounted for sliding movement a piston 15. Connected to eachpiston 15 and extending outwardly of the inner end of the cylinder andinto the casing 1 is a piston rod 16 while surrounding each piston rodwithin the respective cylinder is a coiled expansion spring 17 havingone end abutting the inner face of the piston and the opposite extremityin engagement with the inner end of the cylinder, such sprin s servingto hold the pistons at the outer ends of the cylinders, the springswithin the lower cylinder 14 being of greater strength than the springsin the upper cylinder 13.

18 designates what may be termed a plunger comprising two sections 19,20 pivotally connected to each other through the medium of a knucklejoint 21. This plunger is arranged in proximity to the open side of thewell 4 and the section 19 thereof is rigidly secured to the inner end ofthe rod 16 con nected to the piston within the cylinder 13, while thelower section 20 of the plunger is equipped with a rod 22' passedthrough an eye 23 formed in the inner end of the piston rod 16 withinthe lower cylinder, the rod 22 and the eye 23 effecting a slidingconnection between the piston within the lower cylinder and therespective section of the plunger. The outer extremities of thecylinders 13 and of body harness designed to encircle the back of thecow and connected with the casing 1 of the teat ress so as to hold thelatter in 10 applied position. A teat cup 29 composed rubber otheryieldable material is seated wit 1n the well .4 and the block 3 so as toreceive the animals teat. Connected to the lower edge of the shell orcasing 1 is a hopper-shaped bottom 39 formed with a discharge openincoaxial with the well 4; in

the block 3 and opening into a tube ll adapted to convey, the milk to abucket or like receptacle. in the present instance, the botgc tom 39'isdetachably connected with the lower edge of the shell or casing and forthis purpose has the opposite sides thereof equipped with sleevesl2within which are 'rotatably mounted shanks Q3 having the 35 upper endsthereof bent at right angles to themselves to provide hooks ttdesignedto engage slots 4L5 formed in' the opposite side Walls of the casing 1adjacentto the-bottom edge thereof, the lowereiidsof the shanks ac 13being equipped with manipulating knobs t6 whereby the shanks may berotated to move the hooks into'and out of engagement with the slots.

In practice, each shell-or casing is sus- 35 pende from the body of theanimal through the medium of the harness 28 and the "respective teatplaced within the cup 29, cthe upper edge of the casing. being held insnug,

engagement with the bag. Theair pump 27 to is" now placed in operationand the air enters the rear end of the upper cylinder 13 and actsuponthc adjacent face of the piston therein to slide the latter within.the cylinder and against the action of, the respective 415 spring 17whereby the respective piston rod 16 moves into the casing 1 so t t theupper section 19 of the plunger is forced against the cup 29 and intothe well a in the block 3. Immediately succeeding the piston within theupper cylinder reaching the limit of its a movement under the action-ofthe air, thelatter passes through the pipe 24 into the rear end of. thecylinder 14: behind the piston I therein with the edect to move thelatter,

against the action of the relativel strong spring 17 so that the innerend of t e piston rod within the lower cylinder is movedinto the casing1 whereby the lower section 20 of the plunger 18-is forced intoengagement to with the cup 29 and into the wells: inthe block 3. Thus,the teat is manipulated substantially as in manual milking, incident 'tothe lower section of the plunger acting upon the teat subsequently tothe upper section,

ea the rod 22 and theeye 23 permitting the,

icence lower section to move upwardly incident to the inward movement ofthe section 19.

* In the present instance, the pump 27 is manually operated andcomprises a base 30 and a vertical cylinder 31 upstanding from an thebase. Connected to the lower end .of the cylinder 31 is an air tube orconduit 32 provided with a check valve 33' and with valved nipples 34whereby a number of the teat presses may be operated from a singlesource of pressure. Mounted for reciprocation within the cylinder 31 isa plunger 35 having the plunger rod 36 thereof extending outwardly ofthe upper end of the cylinder and" equipped with a handle 3?. At a point3t) adjacent to the connection with the conduit 32 the cylinder 31 isprovided with an air release valve 38.

From the foregoing description taken in connection with the accompanyingdraw- 33 ings, the construction, mode of operation and manner ofemploying my invention will be readily apparent. It will be seen that lhaveprovided a milking machine whereby the tests are manipulatedsubstantially as 1n as manual milking, incident to the plunger of theteat press being formed of sections actuated one after the other.

I claim:

a 1. In a milking machine, a teat press com- 33 prising a sectionalplunger adapted to manipulate a teat, fluid pressure cylinders,connections between said cylinders, a piston in each cylinder, a pistonrod connected to each piston and toone of the sections of said plunger,a spring within each cylinder and holding the piston therein normallyagainst movement under the action of fluidpressure and of a strengthdifierent from that of the spring in the other cylinder, and a source offluid supply for said cylinders whereby the pistons therein will beactuated successively against theaction of the springs.

2. In a milking machine, a teat press comprising a sectional plungeradapted to ma- 1W nipulate a teat, fluld pressure cylinders, aconnection between said cylinders, a piston in each cylinder, a pistonrod connected to each piston and to one of the sections of said plunger,a tension device within each cylin- 3115 der and holding the pistontherein normally against movement under the action of the fluid pressureand of a str gth difierent from that of tension devicein the othercylinder, and a source offiuid supply for said cyllnderswhereby thepistons thereinv will be actuated successively against the action-o'fthe s rings; i

3. In a m' king machine, a teat press comprising asectional lungeradapted to manipulate a teat, flmdfpressure cylinders,- a

connection hetween said cylinders, a piston in. each cylinder, aconnection between each piston and one of-thesections' of said pluneger, means ineach cyder'holding the piaton therein normally againstmovement under the action of the fluid pressure and of a strengthdifferent from that of the means in the other cylinder, and a source offluid supply for'said cylinders whereby the pistons therein will beactuated successively against the action of the springs.

In testimony whereof I aflix my signature in presence of two witnesses.

JAMES C. GORDON.

Witnesses:

E. S. HoTcHKIss, OSCAR H. TWETEN.

